/Engine/Source/Runtime/RenderCore/Public/ShaderCodeLibrary.h
Create a smaller 'patch' library that only contains data from 'NewMetaDataDir' not contained in any of 'OldMetaDataDirs'.
static bool CreatePatchLibrary ( [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > const & OldMetaDataDirs, [FString](API\Runtime\Core\Containers\FString) const & NewMetaDataDir, [FString](API\Runtime\Core\Containers\FString) const & OutDir, bool bNativeFormat, bool bNeedsDeterministicOrder )